Health insurance gains since last fall hit 12 million, survey shows

President Obama's health law has led to an even greater increase in health coverage than previously estimated, according to new Gallup survey data, which suggest that about 12 million previously uninsured Americans have gained coverage since last fall. That is millions more than Gallup found in March and suggests that as many as 4 million people signed up for some kind of insurance in the last several weeks as the first enrollment period for the Affordable Care Act drew to a close. Just 12.9% of adults nationally lacked coverage in the first half of April, initial data from the Gallup-Healthways Well-Being Index indicates, the lowest rate since the survey began in 2008.